CVE-2021-27581 Explained : Impact and Mitigation
Discover the SQL injection vulnerability (CVE-2021-27581) in Kentico CMS 5.5 R2 build 5.5.3996. Learn about its impact, affected systems, exploitation, and mitigation steps.
A SQL injection vulnerability was discovered in the Blog module of Kentico CMS 5.5 R2 build 5.5.3996, identified as CVE-2021-27581.
Understanding CVE-2021-27581
This section provides insights into the nature and impact of the CVE-2021-27581 vulnerability.
What is CVE-2021-27581?
The CVE-2021-27581 vulnerability exists in the Blog module of Kentico CMS 5.5 R2 build 5.5.3996, allowing attackers to perform SQL injection attacks through the tagname parameter.
The Impact of CVE-2021-27581
Exploitation of this vulnerability could lead to unauthorized access to the database, exposure of sensitive information, and potentially full control over the affected system.
Technical Details of CVE-2021-27581
In this section, we delve into the technical aspects of CVE-2021-27581.
Vulnerability Description
The vulnerability in the Blog module of Kentico CMS 5.5 R2 build 5.5.3996 facilitates SQL injection by manipulating the tagname parameter, enabling malicious actors to execute arbitrary SQL queries.
Affected Systems and Versions
Kentico CMS 5.5 R2 build 5.5.3996 is confirmed to be affected by CVE-2021-27581.
Exploitation Mechanism
Attackers can exploit the SQL injection vulnerability by injecting malicious SQL code through the tagname parameter, potentially gaining unauthorized access to the CMS system.
Mitigation and Prevention
This section outlines the necessary steps to mitigate and prevent exploitation of CVE-2021-27581.
Immediate Steps to Take
Immediately apply security patches provided by Kentico for the affected version to remediate the SQL injection vulnerability. Additionally, restrict access to sensitive areas of the CMS to authorized personnel only.
Long-Term Security Practices
Regularly update the CMS system to the latest version and implement robust input validation mechanisms to prevent SQL injection attacks. Conduct security audits and penetration testing to identify and address potential vulnerabilities.
Patching and Updates
Stay informed about security advisories from Kentico and promptly install patches and updates to ensure the ongoing security of the CMS platform.